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Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..

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Human Neurology

Human Neurology deals essentially with the nervous system of humans. It also features the various theories put forward b..

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Genetics and Evolution

Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..

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Principles of Hormonal Control Systems

Hormones are essential in the regulation of the activity of the various biological systems of the human body. The ineffi..

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The Homo Species

The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..

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The Origins of Life

This tutorial digs into the past to investigate the origins of life. The section is split into geological periods in the..